:root {
    --primary: linear-gradient(135deg, rgba(0, 123, 255, 0.8), rgba(118, 0, 255, 0.8));
    --secondary: rgba(255, 255, 255, 0.1);
    --accent: #ff6f61;
    --text: #fff;
    --card-bg: rgba(255, 255, 255, 0.2);
    --nav-bg: rgba(0, 0, 0, 0.3);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    background: var(--primary);
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
  }

  .container {
    max-width: 1200px;
    margin: 80px auto 40px;
    padding: 0 20px;
  }

  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  }

  .logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, #6b00b6, #440074);
    -webkit-background-clip: text;
    color: transparent;
  }

  .nav-links {
    display: flex;
    gap: 20px;
  }

  .nav-links a {
    color: var(--text);
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background 0.3s;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.2);
  }

  .hero {
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 60px;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') center/cover;
    filter: blur(8px);
    z-index: -1;
    opacity: 0.5;
  }

  .hero-content {
    max-width: 800px;
    padding: 40px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #fff, #ddd);
    -webkit-background-clip: text;
    color: transparent;
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
  }

  .notice {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    margin: 30px 0;
    text-align: center;
    font-size: 0.9rem;
  }

  article {
    background: var(--secondary);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 60px;
  }

  article h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent);
  }

  article h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: #fff;
  }

  article p {
    margin-bottom: 20px;
    font-size: 1.1rem;
  }

  article strong {
    color: var(--accent);
  }

  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    overflow: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
  }

  code {
    color: #ff9d5c;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    overflow: hidden;
  }

  th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  th {
    background: rgba(0, 0, 0, 0.3);
    font-weight: 700;
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

  .gallery-item {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
  }

  .gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  }

  .gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .gallery-item .caption {
    padding: 15px;
  }

  .footer {
    text-align: center;
    padding: 30px;
    background: rgba(0, 0, 0, 0.2);
    margin-top: 60px;
  }

  @media (max-width: 768px) {
    .navbar {
      flex-direction: column;
      padding: 15px;
    }

    .nav-links {
      margin-top: 15px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .hero h1 {
      font-size: 2rem;
    }

    .hero p {
      font-size: 1rem;
    }

    article {
      padding: 20px;
    }

    article h2 {
      font-size: 1.5rem;
    }

    article h3 {
      font-size: 1.2rem;
    }
  }